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14194021 = 29489449
BaseRepresentation
bin110110001001…
…010101100101
3222201010112111
4312021111211
512113202041
61224121021
7231434662
oct66112545
928633474
1014194021
1180151a6
124906171
132c2c83a
141c56a69
1513a5981
hexd89565

14194021 has 4 divisors (see below), whose sum is σ = 14683500. Its totient is φ = 13704544.

The previous prime is 14194003. The next prime is 14194027. The reversal of 14194021 is 12049141.

14194021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5013121 + 9180900 = 2239^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 14194021 - 25 = 14193989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14193983 and 14194001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14194027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244696 + ... + 244753.

It is an arithmetic number, because the mean of its divisors is an integer number (3670875).

Almost surely, 214194021 is an apocalyptic number.

It is an amenable number.

14194021 is a deficient number, since it is larger than the sum of its proper divisors (489479).

14194021 is an equidigital number, since it uses as much as digits as its factorization.

14194021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489478.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 14194021 is about 3767.4953218285. The cubic root of 14194021 is about 242.1224990540.

The spelling of 14194021 in words is "fourteen million, one hundred ninety-four thousand, twenty-one".

Divisors: 1 29 489449 14194021